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Production asymmetry of Ds from 600 GeV/c Σ− and π− beam
Journal article   Open access   Peer reviewed

Production asymmetry of Ds from 600 GeV/c Σ− and π− beam

M Kaya, G Alkhazov, A.G Atamantchouk, M.Y Balatz, N.F Bondar, P.S Cooper, L.J Dauwe, G.V Davidenko, U Dersch, A.G Dolgolenko, …
Physics letters. B, Vol.558(2-Jan), pp.34-40
04/10/2003
DOI: 10.1016/S0370-2693(03)00246-6
url
https://doi.org/10.1016/S0370-2693(03)00246-6View
Published (Version of record) Open Access

Abstract

The production of Ds- relative to Ds+ as a function of xF with 600 GeV/c Σ- beam is measured in the interval 0.15 < xF < 0.7 by the SELEX (E781) experiment at Fermilab. The integrated charge asymmetries with 600 GeV/c Σ- beam (0.53 ± 0.06) and π- beam (0.06 ± 0.11) are also compared. The results show the Σ- beam fragments play a role in the production of Ds-, as suggested by the leading quark model.

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